Overstitch sewing-machine.



J. P. was.

OVERSTITCH SEWING MACHINE.

APPLICATION FILED AUGJO. mu.

1,30,532. Patented Apr. 15,1919.

4 SHEETS-SHEET l.

J. P. WEIS.

OVERSTITCH SEWING MACHINE.

APPLICATION FILED Aus.|0. 1917.

1,3QO,532, Patented Apr. 15, 1919.

4 SHEETS-SHEET 2.

J. P. WEIS.

OVERSTITGH SEWING MACHINE.

APPLICATION FILED AUG.I0 IIJI].

Patented Apr. 15,1919.

4 SHEETS-SHEET 3.

1. P. WElS.

OVERSTITCH SEWING MACHINE.

APPLICATION FILED Aue.10. 1917.

1,300,532. Patented Apr. 15,1919.

4 SHEETSSHEET 4.

\ (1077/2017? Ll/Vf I SATES TNT esson.

JOHN r. wars, or NYACK, NEW YORK, ASSIGNOR, BY mnsuaassremunurs, '10 METRO- rommn snwme mncnmn CORPORATION, OF DOVER, DELAWARE, A. CORPORATION 015 DELAWARE.

OVEBSTITCH SEWING-MACHINE.

Specification of Letters Patent.

Patented Apr. 15, 1919 Application filed August 10, 1917. Serial No. 185,407.

To all whom it may concern:

Be it known that I, JOHN P. Wars, a citizen of the United States, residing at Nyack, in the county of Rockland and State of New York, have invented certain new and useful Improvements in Overstitch Sewing-Machines, of which the following is a specification. 1

This invention relates to sewing machines and more particularly to that type known as over-edge sewing machines in which one or more threads are used to form an overstitch over the edge of the goods which has been previously trimmed by suitable trimming mechanism, in advance of the stitchmg operation.

To make practicable a high speed overstitch machine-that will operate at 4000 R. P. M. with a minimum vibration and noise it is necessary that as many of the movlng parts as possible 'be rotary ones and that the reciprocating parts be as few as possible and of such proportion and construction as will stand the strain of rapid and contmuv ous operation. This high speed also necessitates that the moving parts he efiiclently lubricated. and so far aspossible be incased. Another important feature is that the machine be low as possible in order to avoid vibration. To .accomplish this, it is necessary that the operating parts be as compact as possible, and yet the machine must be comparatively inexpensive to manufacture, easy to assemble and maintain in use.

These very important features to a successful commercial machine are obtained in the present improvement by combining with a special frame structure and with a top and bottom rotary shaft having multiple connections for transmitting-power from one to the other, an under-slung needle drive, and suitable feeding, trimming and stitching mechanisms.

In the drawings accompanying and forming a part of this specificatiorr Fi re 1 is a top plan view of the machine. 1 2 1s a front view of the machine with t e trimming mechanism omitted and a portion of the cover plate broken away to show the operating parts. Fig. 3 is a left hand end view of Fig. 1; Fig. 4 is a vertical section taken on the line 44 Fig. 2, and looking inthe direction of the arrows in said figure; Fig. 5

is a top plan sectional view of the bottom portion of the machine, taken on the line is a detail sectional view of the needle drive showing the guiding means, which limits the torsional or angular movement of the needle bar, the section being taken on the line 77 of Fig. 6; Fig. 8: is a front view of the machine arranged for hemming the tops of stockings and other small tubular work. This is accomplished by modifying the lower end portion of the machine and removing as much as possible the mechanism from the left of the needle line; Fig. 9 is an end view of the machine shown in Fig. 8 with a portion of the front plate broken away clearly to show how the trimmer, feeding and stitching mechanism is organized to operate in a very compact space and also to show the swinging cover plate in a partly open position; and Fig. 10 is a diagrammatlc illustration of the paths of movement of the needle, spreader and looper showing the relative inclination of their movements to each other due to theirinclined location to the perpendicular and to the work plate, and also showing, due tothe inclined location of the several instrumentalities, how the operation ofone tends to offset or counterbalance the vibrations of the other instrumentality, this view having been taken from an operative machine wherein the angle of inclination of the parts from the perpendicular is slightly greater than that shown in the drawings, but it is understood that when the angle of inclination illustrated. in the drawings is used that" angle of inclination is the same for the needle, looper and spreader from the perpendicular. In F ig. 10 the vertical line A-A is the usual needle line, being 90 from the cloth plate line. In the present improvement the figure illustrates the needle line inclined 12 from the perpendicular or the vertical line 100 12 fromthe usual needle line AA of 78 105 from the cloth plate line. The bottom of the needle B, the top of the looper line C and the top of the spreader line D intersect one another at the cloth plate line.

Similar characters of reference indicate corresponding parts in the several figures of the drawin The machine base or frame 1 has suitable feet 2 to afiord a proper support for the machine. The bottom shaft 4 is carried by a forward bearing 3, an intermediate bearing 5 integral with the transverse vertical wall 6 and an end bearing 7 which is enlarged to receive a suitable bushing 8. The rear portion 9' of the frame, see Fig. 4, carries an inner web 10, terminating in an opening 11, while the front wall. 12 carries a web 13 forming the other side of the opening 11 thus forming an oil well or pocket covered by a plate 14, for the lubr cation of certain parts of the machine. The rear wall 9 also extends upward and curves inward or forwardly as at 16 to form an opening 17 which is covered by a plate 18, pivotally s'ecured thereto by a screw 19 and held in fixed position by a screw 20. This plate may be swun onthe screw 19 to uncover the opening 1% for oiling, cleaning or adjusting the working parts. At the forward end of the base 1, at the rear edge thereof are bearings 21 22 and forming a su port for the lower feed rocker shaft 23. vertical wall 6 of the frame and the rear walls 9 and 16 terminate in a circular overhanging portion 24,'see Figs. 2 and 8, overhanging a somewhat similar circular portion formed in part by the extension or portion 68 of the swinging plate 63 hereinafter described. The over-hanging portion 24 carries a bushin 25 for the'top shaft 26, the rear end of t is shaft being supported m a bushing 27' supported at the rear of the frame as at 28. The over-hanging part 24 has a vertical, angular extension 29, provided with a face plate 30 secured thereto and in this angular extension the needle bar 31 and the presser bar 32 operate. This angular extension has a top hole 33 tapped therein to receive anadjusting screw 34 for adjustin the tension of the spring 35 which surroun s the presser bar 32. The face plate 30 is slotted as at 36 to receive the presser bar 'uide 37 which prevents said bar from axia movement. Attached to the presser bar guide is a plate 38 covering the slot 36 so asto prevent leakage of lubricant therethrough.. This presser bar guide is clamped to the presser bar by a screw 39. The lower endof the face plate is provided with a bearing 40, see Figs. 2 and 3, for the lower end of'the presser bar 32. A'presser foot 41 is secured to the lower end of the. bar. The inclined needle bar 31 herein shown, having an inclination not exceeding 20% from the perpendicular operates in the bearings 42 and 43 and carries a suitable needle 44. The

needle bar 31 is operated by a crank disk 45, see Fig. 6, which is secured to the forward end of the to shaft 26, and has pivotally connected thereto as at 46 an upwardly he transverse extending pitman connection 47, the top end 52 of the walls of. the slot 51 is so arranged as to prevent the top end 48 of the 'pitman from shaking sidew1se. The crank disk 45 above referred to operates in a chamber 24" of the circular overhanging portion 24, adapted to carry a quantity of oil (see Fig. 6). To prevent leakage of this oil from this chamber, I provide a dam 54 inserted in a circular slot 55 formed in the end wall 56 of the chamber 24. In order to remove the top shaft 26 and crank 45', the dam can be removed from the slot 55. When the end plate is in place and secured thereto by screws 57 the needle driving mechanism is operated in an oil tight chamber, so that these parts are kept well lubricated. A recess or pocket 58' (see Fig. l) is also provided in the top of the face plate,'extending from the needle bar to the presser bar to facilitate oiling the top bearings thereof. Clamping screws 59 (see Fig. 1) are provided'for holding the top shaft bushings 25 and 27 in the frame, and these screws are provided with oil holes '60 for oiling the shaft. The top shaft connections 61 may be oiled through a suitable opening at the top of. the machine. The 'connectin rods 62 transmit power from the bottom s aft to the top shaft. The front of the machine frame is provided with an enlarged opening normally covered by a swing plate 63 pivotally secured at 64 to the base of the machine, by conical screws 65 (see Figs. 1, 5, 8 and 9). This cover'is locked in position by a latch 66 which may operate one'way by a suitable spring. This cover plate extends to the left as at 67 and 68, Fig. 8 and has a top portion 69 so as to partly cover the opening in the cloth plate over the looper mechanism. A section of the forward end of the plate is broken away in Fig. 8 clearly to show the looper and a portion of the feed mechanism. As the cover plate is pivoted to the frame at the base of the machine it may be readily swung so as tolie close to the table and be entirely out of the way, while the machine is being threaded, oiled or adi'usted; In Fig. 9 the dotted lines clearly ilustrate the extension 68 the overhanging portion 69 and the latch 66 of this cover. It is particularly necessary that the mechanism of the machine be completely covered and that the threads also be covered or protected, so that canbe quickly accomplished This will be described hereinafter.

The bottom shaft4 is provided with a belt wheel and adjacent to the bushing 8 is a spiral gear 71 operating a spiral gear 72' carried by horizontal transverse shaft 73, see Fig. 5, located in bearings 74. These bearings are provided with oil pockets 75 that can be reached through an aperture 76 for oiling. The bearings 74 are integral,

with the frame plate 77 secured to the rear of the machine as at 78. An opening 79, see Fig. 4, in the rear wall of the machine is provided so that the shaft and gear, together with its two throw crank ends 80 can be readily inserted thereby to facilitate assembling and adjusting. The cranks operate ball joint rod connections 81, one of which actuates looper 82 secured to a carrier 84, see Fig. 2. This carrier has a ball 85 formed integral therewith for connection with a ball joint 86 to reciprocate the looper on its inclined pivotal support 87, see Figs. 3 and 9. This inclined pivotal support consists of'a screw stud 9O tapped into the machine and it has a shoulder 91. The support 87 also carries a collar 92 secured thereto so as to limit the end movement of the carrier 84 on its pivotal support, while a set screw 93 holds the screw stud in its adjusted posi tion. A slot is provided in-the end of the stud 90 so that when the set screw 93 is loosened the turning of the stud 90 will.

to different sizes of needles. The looper and its mechanism are mounted inclined so as to coincide with the angle at which the needle bar operates and this enables the trimming mechanism to operate close to the needle. The other of the rod connections 81 operates the loop spreader through its ball connection to the spreader lever 95. This spreader lever is also pivotally secured as at 96 to a segmental plate 97, see Fig. 2, which is pivotally secured as at 98 to a plate 99. A similar segmental. plate 100 is pivotally secured as at 101 to the plate 99. These segmental plates form a link motion for giving proper movement to the spreader 102. The plate 99 is secured to the base of the machine by a screw 103 and is mounted at an angle opposed to the angle at which the lever and needle operate. The angular relation between these three members enables the spreader to seize loops of thread from the rearof the looper below the cloth plate and deliver loops of thread tothe front of the needle at the top of the cloth plate.

I' has been accomplished in various ways. In

some machines a curved needle is used with the looper and spreader operating in a vertical line, so as to intersect or cross the curved path traversed by the needle. In others an angular needle driveof considerable angle is used with the loopers operating in a vertical path, while in others a vertical reciprocating needle and a vertically positioned looper is used with the spreader operating on an angle and traveling from the rear of the looper below the cloth plate to the front of the needle above the plate. The curved needle is faulty, in that it has a tendency to. .straighten out causin the skipping of stitches and breakage o needles. needle drive of great angularity is faulty, in that it sho'ves the work forward as it is penetrating the same, while a spreader having an extreme angularity is faulty in that it will not stand high speed, because of its crampy that the operation of one tends to offset or counterbalance the vibrations of its companion instrumentality, thus bringing about a superior result in speed and the handling of the thread. Moreover the machine is also capable of doing heavier work. In other words, the needle bar, the looper and the spreader are all so located that theyareat substantially the same angle relatively to 'the plane of the cloth or work plate, the

planes of inclination of the needle bar and spreader, and of the spreader and looper, crossing each other, so that in the rapid movements of the three elements, the needle, looper and spreader, the vibrations caused thereby tend to counteract or counterbalance one another so that the machine will be steady on the table while stitching at speed.

One form of feeding mechanism is generally indicated by 104, and a trimming mechanism, located in front of the needle, is generally indicated by 105. In the stocking welting or hemming machine shown in Figs. 8 and 9 I have provided a trimming mechanism generally indicated by 106 partly located in the rear of the needle with its cutting knives 106' located in front of the needle. The feeding mechanism of the stocking welter machine is generally indicated by 107' and is of the tilting feed variety. In Figs. 1 and 2 the cloth plate 108 is shown secured to the front bearing 3, while in Figs. 8 and 9 the cloth plate 109 is secured to the base by suitable screws 110.

-The cloth plate is provided with a projection 111 which carries the throat plate 112. The needle thread 113 is guided by a post 114 thence it passes tothe tension 115' and to through the guide 123,- then to the thread guide 124, then to the thread hook 126, andv thence to the looper 82. One of the connect ing rods 62 preferably the center one is provided with a yoke 127 adjustably secured thereto and this yoke has a wire 128 adjustably secured in a socket thereof as at 129. The end of the wire operating between the guide eyes 119 acts on the thread 116 to pull thread'from the supply for each stitch. A similar wire 130 secured in a socket 131 operates between the thread guides 124 on the looper thread 122, to pull thread from the supply for each stitch. The above consti-- tutes a thread handling or pull 01f means for operating on the looper and spreader threads, adjustable so as to pull off the correct amount for the character of stitch beingformed. The nippers 121 and 125 co-act with nipper plates 132 and 133 while the guide loops 125 prevent the threads. from displacement. The nippers 121 and 125, see Fig. 5, are carried by an arm 134. This arm is pivoted on a stud 135 and a downwardly extending arm 136, see Fig. 4, co-acts with a disk cam 137 shaped as at 138 so as to rock the nipper arm on the stud 135 and close the nippers 121 and 125 to nip the threads, while the pull off wires are acting upon the thread. The spring 138' connected to the nipper arm and the frame of the machine serves to open the nippers at a predetermined time.

In order that the presser foot 41 may be lifted, I have provided a lifting lever 139, see Fig. 1, located inside the machine frame and pivotally secured thereto as at 140, it having its forward end 141 reaching out beyond the presser foot guide 37 for the purpose of lifting the same. The actuating end 142 of the lever 139'projects from the rear wall of the machine and may be connected by a chain to a foot treadle.

In the present improvement the top rotary shaft is located much nearer to the bottom rotary shaft than is customary. In other words, this improved machine has only a small overhang and no goose neck or top arm, such as is usual in sewing machines,- yet it has a top and bottom rotary shaft, the top shaft driving the needle mechanism. The crank disk for operating the needle bar is located close to the work plate and has a pitman extending upward instead of downward for connection with the needle bar adjacent to the top thereof. This afi'ords means for oiling the crank pin and also oiling the top part of the link by the splash system. Thus, in the present improvement I provide a sewing machine having two rotary shafts, the upper one being connected with the needle bar by an upwardly extending driving link extending above the top shaft, so as to operate the needle bar in the manner indicated, and thus provide in a two-rotary shaft sewing machine an underslung driving mechanism for the needle.

In an overstitch machine where the looper is to cooperate with the needle below the work plate and also to cooperate with the spreader, the looper being behind the needle and the spreader behind the looper and the spreader cooperating with the needle above the work plate in front of the needle, the inclined position of these various elements does away with an eccentric or an additional lateral movement which would be necessary to shift the looper or spreader laterally from frontto rear to accomplish the sewing operation.

' It will be understood that the various details may be more or less modified without departing from the spirit or scope of the present improvement.

I claim as my invention:

1. In an overstitch sewing machine, the

combination of top and bottom rotary shaft, means including a reciprocatory connection between said shafts, feeding mechanism, looper mechanism, needle mechanism including a needle bar, and an upwardly extending connection from said top shaft to said needle 'bar and connected with said needle bar above the rotary top shaft, thereby forming an underslung needle drive.

2. In an overstitch sewing machine, the

combination of a top and bottom rotary shaft, means connecting said shafts, feeding.

mechanism, looper mechanism, needle mechanlsm includlng a needlebar, and an upwardly extending connection from said top 3 shaft to said needle bar and connected with said needle bar above the rotary top shaft thereby forming an underslung needle drive, the needle bar being located inclined to the plane of the work plate.

3. In an overstitch sewing machine hav-- ing a work plate and a needle, the combination of a rotary top shaft, an underslung drive between said shaft and needle, a

the front of the needle at the top of thework plate.

5. In an overstitch sewing machine having a work plate, the combination of a top and bottom rotary shaft, means connecting said shafts, needle mechanism including a needle bar located inclined to the work plate, an upwardly extending connection from said top rotary shaft to the needle bar, and connected with said needle bar above the 'rotary top shaft thereby forming an underslung needle drive, looper mechanism including a looper located inclined to the work plate, and spreader mechanism including a spreader also located inclined to the plane of the work plate and located to seize thread loops at the rear of the looper below the work plate and deliver the thread loops to the front of the needle at the top ofthe work plate, both said spreader and looper being inclined from front to rear of the work plate.

6. An overstitch sewing machine having angularly located stitching mechanism comprising an inclined needle bar and needle, an inclined looper, and an inclined spreader, each located in a fixed plane inclined to the plane of the work plate from front to rear thereof, the planes of inclination of the spreader and looper crossing each other.

7. An overstitch sewing machine having angularly located stitching mechanism comprising an inclined needle bar and needle, an'inclined looper, and an inclined spreader, each located in a fixed plane inclined to the plane of the work plate from front to rear thereof, the planes of inclination of the needle bar and spreader crossing each .other.

8. In an overstitch sewing machine, the combination of a needle located inclined to the plane of the work plate, a looper and a spreader both located in fixed planes inclined to the plane of the Work plate from front to rear of the work plate.

9. In an overstitch sewing machine, the combination of a needle located inclined to the plane of the work plate, a looper and a spreader both located in fixed planes inclined to the plane of the work plate from the plane of the work plate, an underslung drive therefor, a looper and a spreader both located in fixed planes inclined to the plane of the work plate from front to rear thereof.

11. In an overstitch sewing machine, the combination of an overhanging circular arm having an oil reservoir, a needle driving shaft therein, a base portion in juxtaposition thereto and also forming an oil reservoir, a driving :shaft therein, connections between said shafts, needle mechanism including a needle bar located inclined to the plane of the work plate, and a connection extending upward from said needle drivmg shaft to the needle bar and forming an underslung needle drive.

12. In an overstitch sewing machine, the combination of an overhanging circular arm havlng an oil reservoir, a needle driving shaft therein, a base portion in juxtaposition thereto and also forming an oil reservoir, a driving shaft therein, connections between said shafts, needle mechanism ineluding a needle bar located inclined to the a plane of the work plate, a connection ex- .tendmg upward from said needle driving shaft to the needle bar and forming an underslung needle drive, and a looper and -spreader both located inclined to the plane of the work plate and carried by said base.

13. In an overstitch sewing machine, the combination of an overhanging circular arm having an oil reservoir, a needle driving shaft therein, a base portion. in juxtoposition thereto and also forming an oil reservoir, a driving shaft therein, connections between said shafts, needle mechanism including a needle bar located inclined to the plane of the work plate, a connection extending upward from said needle driving shaft to the needle bar and forming an underslung needle drive, a looper and spreader both located inclined to the plane of the workplate' and carried bysaid base, and a shiftable cover plate for said base.

14. In an overstitch sewing machine, the combination of an overhanging circular arm having an oil reservoir, a needle driving shaft therein, a base ortion in juxtaposition thereto and also orming an oil reservoir, a drivin shaft therein, connections between said s afts, needle mechanism including a needle bar located inclined to the plane of the work plate, a connection extending upward from said needle driving shaft to the needle bar and forming an underslung needle drive, a looper and spreader.

both located inclined to the plane of the workand carriedby said base, a shiftable cover plate for said base, and a shiftable cover plate for said overhanging circular arm.

15. In an overstitch sewing machine, the

combination of a supporting frame comprisprojecting portions, one overhan ing a body portion having a pair mg the other and in juxtaposition one to t e other driving shafts extending into both of sai portions, means connectin said shafts, a movable cover for said'bo y and having a laterally extending portion forming a part of the lower pro ecting portion, stitching mechanism. comprising needle mechanism, looper mechanism, and spreader mechanlsm including driving means therefor, the needle driving mechanism and the looper and spreader mechanisms being all substantially located within saidbody and projecting por-- tions,

16. In an overstitch sewing machine, the combination of a supporting frame comprisin a body portion havmg a pair of lateral y rojecting portions, one overhanging the ot er and in juxtaposition one to the other, driving shafts extending into both of said portions, means connecting said shafts, a movable cover for said body and having a laterally extending portion forming a 1part of the lower projectmg portion, stitc ing mechanism comprising needle mechanism,

looper mechanism, and spreader mechanism including driving means therefor, the needle driving mechanlsm and the looper and spreader mechanisms being all substantially located within said body and projecting portions, and. thread carrying means for said mechanisms and also located within the body and projecting portions.

' 17. In an overstitch sewing machine, the combination of a supporting frame com prising a body portion havmg a pair of laterally projecting portions, one overhanging the other and in juxtaposition one to the other, driving shafts extending into both of said portions, means connecting said shafts, a movable cover for said body and having a laterally extending portion form ing a part of the lower projecting portion, stitching mechanism comprising needle mechanism, looper mechanism, and spreader mechanism including driving means therefor, the needle driving mechanism and the looper and spreader mechanisms being all substantially located within said body and projecting portions, and thread carrying means for said mechanisms and also located within the body and projecting portions, the needle, looper and spreader all being located inclined to the plan of the work plate from front to rear thereof.

18. In an overstitch ewing machine, the combination ofa supportin frame comprising a body portion havmg a pair of laterally projecting portions, one overhanging the other and in juxtaposition one to the other, driving shafts extending into both of sa1d portions, means connecting said shafts, a cover for said body and havingra laterally extending portion forming a part of laterally.

of the lower projecting portion, stitching mechanism comprising needle mechanism,

plane of the work, and the needle mechanism.

including an underslung drive.

19; In an overstitch sewing machine, the combination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, and thread carrying means for the needle, looper and spreader mechanisms,

substantially all of said mechanisms being entirely incased, the casing comprising a body portion having a pair of laterally projecting circular portions, one overhanging the other, a shaft projecting into each of said circular portions, and means including a reciprocating connection between said shafts,

20. In an overstitch sewing machine, the combination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, thread carrying means for the needle, looper and spreader mechanisms, substantially all of said mechanisms being entirely incased, the casing comprising a :body portion having a pair of laterally projecting circular portions, one overhanging the other, a movable cover for said body portion and having a laterally extending portlon forming a part of one of said latercombination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, thread carrying means for the needle, looper and spreader mechanisms, substantially all of said mechanisms being entirely incased, the casing comprising a body portion having a pair of laterally projecting circular portions, one overhanging the other, a movable cover for said body portion and having a laterallyextending portion forming a part of one of said later" ally projecting portions, a shaft projecting into each of said circular portions, and means including a reciprocating connection between said shafts, and a cover for the top of the upper laterally projecting portion.

22. In an overstitch sewing machine, the combination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, thread carrying means for the needle, looper and spreader mechanisms, substantially all of said mechanisms being entirely incased, the casing comprising a body portion having a pair of laterally projectin circular portions, one overhanging the ot er, a movable cover for said body portion and having a laterally extending portion forming a part of one of said laterally projecting portions, a haft pro ectlng into each of said circular portions, and means includin a reciprocating connection between said sfiaft's, the needle, the looper and the s reader all being inclined to the plane of the work plate from front to rear thereof.

'23. In an overstitch sewing machine, the

combination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, thread carrying means for the needle, looper and spreader mechanisms, substantially all of said mechanisms being entirely incased, the casing comprising a body portion having a pair of laterally projecting circular portions, one overhanging the other, a movable cover for said body portion and having a laterally extending portion forming a part of one of said laterally projecting portions, a haft projecting into each of said circular portions, and means including a reciprocating connection between said shafts, the needle, the looper and the spreader all being inclined to the plane of the Work plate from front to rear of the work plate and including an underslung drive for said needle.

24. In an overstitch sewing machine, the combination ,of needle mechanism including an inclined needle bar carrying a needle and an underslung needle drive, feeding mechanism, trimming mechanism, an inclined looper mechanism, an inclined spreader mechanism, both inclined in fixed planes from front to rear of the work plate, and thread carrying means for aid needle, looper and spreader mechanism, all of said mechanisms being substantially incased.

25. In an overstitch sewing machine, the combination of needle mechanism includin an inclined needle bar. carrying a needle and an underslung needle drive, feeding mechanism, trimming mechanism, an inclined looper mechanism, an inclined spreader mechanism, both inclined from front to rear of the work plate, thread carrying means for said needle, looper and spreader mechanisms,

all of said mechanisms being substantially incased, the casing comprising a body portion having a pairof laterally projecting circular portions, on overhanging the other, a pair ofdriving sh afts in the casing, one projecting into each of said laterally proj ecting portions, and multiple reciprocating connections between said shafts.

26. In an overstitch sewing machine, the

I combination of needle mechanism including an inclined needle bar carrying a needle an an underslung needle drive, feeding mechafeeding mechanism, trimm1 an inclined I combination of needle mechanism including an inclined needle bar carrying a needle and an underslung needle drive, mechanism, an inclined looper mechanism, an inclined spreader mechanism, thread carrying means for said needle, looper and spreader mechanisms, substantially all of said mechanisms being incased, the, casing comprising a body portion havinga pair of laterally projecting circular *portions, one overhanging'the other, a pair of drivin shafts in thecasing, one projecting into eac of said laterally projectmg portions, and

multiple connections between said shafts, said casing having an oil reservoir .for the lower shaft and an oil reservoir for the upper 'shaft, the upper lateral projection havin means for preventing the leakage of the o therefrom and removable to permit the top shaft to be removed.

28. In an overstitch sewing machine, the

combination of needle mechanism loopen.

mechanism, spreader mechanism, feedlng mechanism, thread carryin means for the looper, spreader and n e mechanisms, substantially all of said mechanisms being completely incased, the casing comprising a body, and a pair of laterally projecting portions, one overhanging another, the over-- hanging portion having removable means for damming the end thereof and removable to permit the removal of a portion of the needle mechanism.

29. In an overstitch sewing machine, the combination of needle mechanism, looper mechanism, spreader mechanism, feeding mechanism, thread carryi means for the looper, spreader and ne e d substantially all of said mechanisms being completely incased, the casing comprising'a body, and a pair of laterally projecting portions, one overhanging the other, the over-- hanging portion. having removable means for dammin the end thereof and removle mechanisms,

able to permit the removal of a portion of the needle mechanism, and a cover for said casing and having a laterally projecting part forming a cover for the lower laterally pro-- ecting portion. v

80. In anoverstitch sewing machine, the combination of needle mechanism, looper mechanism, spreader mechanism, feedmg mechanism, thread carryin means for the looper, spreader and needle mechanisms, substantiall all of said mechanisms being completely mcased, the casing comprising a body, and a pair of laterally projecting portions, one overhanging the other, the overhanging portion havmg removable means for dammin the end thereof and removable to permit the removal of a portion of the needle mechanism, and a cover for said casing and having a laterally projecting part forming a cover for the lower laterally projecting portion, said cover pivoted to the frame adjacent to the base thereof whereby it may-be readily swung outwardly so as to lie close to the machine table and be entirely out of the way.

31. In an overstitch sewing machine, the combination of needle mechanism including an underslung needle drive, aninclined. needle bar, looper mechanism inclined to the plane of the work plate and located in a plane at substantially the same angle xed ,A elatively thereto as the needle bar, spreader mechanism, and trimming mechanism located to operate close to the needle.

32. In an overstitch sewmg machine, the

- combination of needle mechanism including an underslung needle drive and aninclined needle bar, looper mechanism inclined to the plane of the work plate and located in a fixed plane at substantially the same angle relatively thereto as the needle bar, spreader mechanism, trimming mechanism located to operate close to the needle, and thread carrying means for the several mechanisms, substantially all of said mechanisms and thread 33. In anoverstitch sewing machine, the combination of needle mechanism includi an underslung needle drive and an incline needle bar carrying a needle, an inclined spreader mechanism, an inclined looper mechanism, both inclined in a fixed plane from-front to rear of the work plate, and trimming mechanism located partly in the rear of the needle with its cutting knives located in front of the needle.

34. In an overstitch sewing machine, the combination of an inclined needle bar carryin a needle, a looper behind the needle and ocated inclined to the work plate a loop spreader behind the looper and also located inclined to the work late, the inclination of said parts being in xed planes from front to rear of the work plate, and means for operating said parts.

35. In an overstitch sewing machine, the combination of an inclined needle bar carrying a needle, a looper behind the needle and located in a fixed plane inclined to the work plate, a loop spreader behind the loo er and also located in a fixed plane incline to the work late, the angles of inclination of the sprea er and needle intersecting each other, and means for operating said parts, said spreader effective to seize-thread loops from the rear of the looper below the work late and deliver said 100 s to the front of the needle at the top of t e work plate.

36. In an overstitch sewing machine, the combination of ar inclined needle bar carrying a needle, a looper, and a loop spreader all located in a fixed plane inclined to the work plate from front to rear thereof and operating at a substantially equal angle to the work plate.

37. In an'overstitch sewing machine, the combination of an inclined needle bar carrying a needle, a looper, and a loop spreader all located in fixed planes inclined to the work plate from front to rear thereof and operating at a substantially equal angle to the work plate, the looper being located behind the needle and the spreader behind the loo er.

38. 11 an overstitch sewing machine, the combination of an inclined needle bar carrying a needle, a looper, and a loop spreader all located in fixed planes inclined to the work late from front to rear thereof and operatmg at a substantially equal angle to the work plate, the looper being located behind the needle and the spreader behind the looper, said s reader being efi'ective to seize thread loops 0m the rear of the looper below the workplate and deliver the thread loops to the front of the needle at the top of the work plate.

39. In an overstitch sewing machine, the combination of an inclined needle bar carrying a needle, a looper behind the needle and located in a fixed plane inclined to the work plate, a loop spreader behind the looper and also located in a fixed plane inclined to the work plate, said spreader effective to seize thread loops from the rear of the looper below the work plate and deliver said loops to the front of the needle at the top of the work plate, and means for operatmg said parts and comprising a bottom rotary shaft and a top rotary shaft located relatively close to each other, means including a reciprocating connection between said shafts, said top rotary shaft having an upwardly extending connection for operating the needle thereby forming an underslung needle drive.

40. In an overstitch sewing machine, the combination of an inclined needle bar carrym a needle, a looper and a loop spreader a1? located in fixed planes inclined to the work late from front to rear thereof and operatmg at substantially equal angles to the work plate, and means for operating said parts and comprisig a bottom rotary and a top rotary shaft located re atively close to each other, means including a reciprocating connection between said shafts, said top rotary shaft having an upwardly extending connection for operating the needle thereby forming an underslung needle drive.

41. In an overstitch sewing machine, the .combination of an inclined needle bar carrying a needle,'a looper and a loop spreader all located in fixed planes inclined to the work plate from front to rear thereof and operating at substantially equal angles to the work plate, the looper being located behind the needle and the spreader behind the looper, and means for operating said parts and comprising a bottom rotary shaft and a top rotary shaft located relatively close to each other, means including a reciprocating connection between said shafts, said top rotary shaft having an upwardly extending connection for operating the needle thereby forming an underslung needle drive.

42. In an overstitch sewingmachine, the combination ofan inclined needle bar carrying a needle, a looper and a loop spreader all located in fixed planes inclined to the work plate from front to rear thereof and operating at substantially equal angles to the work plate, the looper being located behind the needle and the spreader behind the looper, said spreader being efiective to seize thread loops from the rear of the looper below the work plate and deliver the thread loops to the front of the needle at the top of the work plate, and means for operating said parts and comprising a bottom rotary shaft and a top rotary shaft located relatively close to each other, means including a reciprocating connection between said shafts, said top rotary shaft having an upwardly extending connection for operating the needle thereby forming an underslung needle drive.

43. In an overstitch sewing machine having a cloth plate, the combination of feeding mechanism, looper mechanism, spreader mechanism, said looper and spreader mechanisms having their planes of movement inclined to the plane of the cloth plate, and needle mechanism including an inclined needle bar having an inclination to the perpendicular not'exceeding twenty degrees.

44. In an overstitch sewing machine having a cloth plate, the combination of feeding mechanism, looper mechanism, spreader mechanism, the looper and spreader mechanisms having their planes of movement inclined to the plane of the cloth plate, and needle mechanism including an inclined needle bar having an-inclination to the perpendicular not exceeding twenty degrees, the inclination of the looper and spreader shaft not being substantially greater than that of the needle.

45. In an overstitch sewin machine, the combination of a top and bottom rotary shaft, means connecting said shafts, feedmg mechanism, looper mechanism, needle mechanism including a needle bar and an upwardly extending connection from said top shaft to said needle bar and connected with said needle bar above the rotary top' top shaft to said needle bar and connected with said needle bar above the rotary top shaft thereby forming an underslung needle drive, and a third rotary shaft driven from one of said rotary shafts and operatively connected with the looper mechanism for actuating the same. I

47. In an overstitch sewin combination of a top and I) shaft, means connecting said shafts, feeding mechanism, 100' er mechanism, spreader machine, the

ottom rotary mechanism, nee le mechanism including a needle bar and an upwardly extending connection from .said top shaft to said needle bar and connected with said needle bar above the rotary top shaft thereby forming an undersl'ung needle drive, a third rotary shaft driven from one of said rotary shafts and operatively connected with the looper mechanism and spreader mechanism for actuating the same.

48. In an. overstitch sewing machine, the combination of an inclined needle bar calrying. a needle, a looper behind the needle and ocated inclined to the work plate, a loop spreader behind the looper and also located inclined to the work plate, said spreader effective to seize thread loops from the rear of the looper below the work plate and deliver said loops to the front of the needle at the top of the work plate, means for operating said parts and comprising a bottom rotary shaft and a top rotary shaft located relat1vely close to each other, said top rotary shaft having an upwardly extending connection for operating the needle thereby forming an underslung needle drive, and a third rotary shaft for, actuating the looper and spreader mechanisms and operatively connected with one of said rotary shafts.

49. In an overstitch sewing machine, the combination of an inclined needle bar carrying a needle, a looper behind the needle and located. inclined to the work plate, .a

loop spreader behind the looper and also .and deliver said loops to the front of the needle at the top of the work plate and means for operating said parts and comprising rotary shaft located relatively close to each other, said to rotary shaft having an upwardly exten ling connection for operating the needle thereby forming an underslu needle drive, and a transverse rotary shaft for actuating the looper and spreader mechanisms and operatively connected with one of said'rotary shafts and located between the said top and bottom rotary shafts.

50. An overstitch sewing machine having angularly located stitching mechanism comprising an inclined needle bar and needle,

a lbottom rotary shaft and a top' an inclined looper, and an inclined spreader, each located in a fixed plane inclined to the plane of the work plate from front to rear thereof, the planes of inclination of the spreader and looper crossing each other and the planes of inclination of the needle bar and spreader also crossing each other.

51. An overstitch sewing machine having angula-rly located stitching mechanism comprising an inclined needle bar and needle,

an inclined looper, and an inclined spreader,

each located in a fixed plane inclined to the' plane of the work plate from front to rear thereof, the planes of inclination of the spreader and looper crossing each other and.

the planes of inclination of the needle bar and spreader also crossing each other, such plate.

Signed at Nyack, N. Y., this6th day of intersection of the planes being at the work as 

